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arXiv · 1407.4683

Spatial ordering of nano-dislocation loops in ion-irradiated materials

S. L. Dudarev·K. Arakawa·X. Yi·Z. Yao·M. L. Jenkins·M. R. Gilbert·P. M. Derlet
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Abstract

Defect microstructures formed in ion-irradiated metals, for example iron or tungsten, often exhibit patterns of spatially ordered nano-scale dislocation loops. We show that such ordered dislocation loop structures may form spontaneously as a result of Brownian motion of loops, biased by the angular-dependent elastic interaction between the loops. Patterns of spatially ordered loops form once the local density of loops produced by ion irradiation exceeds a critical threshold value.

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S. L. Dudarev, K. Arakawa, X. Yi, Z. Yao, M. L. Jenkins, M. R. Gilbert, P. M. Derlet. 2014-07-17. Spatial ordering of nano-dislocation loops in ion-irradiated materials. https://doi.org/10.1016/j.jnucmat.2014.02.032

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